Molding-machine.



W. DYBIL, 1 MOLDING MACHINE m meulox rum) JAN.2'2,1906,'.A

8 SHEETS-SHEET 4.

PATENTE'D DEC. 25; 1906:

PATENTED DEC. 25

I -W.10YBR.

MOLDING MACHINE.

APPLICATION FILED JAN.22.1906.

L A gZ/U/ plurality'of sections are to be assembled to- "OFFICE T W LTER Dyna, er-cmcieo; ILL-1 WILLIAM E, i SHAW, or IQHIQAGO. rnn uois. I

, l v I i f l I T9, alLwhom it may concern: I

Be it knowirth t I, WALTER Dyna, a subject ofthe King of which the following is a description, My invention has for its object the productionof .a machine for molding articles, sections, orblocks of concrete, cement, pulp, or

other plastic materiaL- which' shall be either complete in one piece or so formed that a ether to form a completed structuresuch,

or instance, as a wall'-in which case the sec tions are so. constructed that they may be -'-forced into locking relation with'each other and when assembledand so locked together will form a complete wall, partition, or the like designed for use more particularly in buildings ,1 &c.

. struct a machine capable of not. only forming A further object of my invention is to consuchsections so that they may be forced ihto perfect locking relation with each other, but that {such sections shall be so formed in the process .of their construction that when assembled together in the completed structure said-structure shall have a plurality of .horizontaland vertical 1 air-spaceswithin and thrmlghout thesame. I

Another object'of my invention is toprovide such a machine which shall be practi- I to produce such articles or sections in rapidsuccession, thereby effecting a great saying in time and. expense in the operation of! the machine; as well as producing a labor-saving 1 device. I

Amthf of y nvention ises or duce a machine for molding such artic;

sections which. shall be provided with means for pressing the air out of the plastic material being formed in the mold and of providing air. I I spaces through which said air m; escape, I is being applied uniformly! is a'shaft iourn'aled in; the frame of the v I I ea ernes of Lat-es lanai. n licatimi feta Jammy 22.1906. se ia1No. ;297.e6 1. I

tion. at: Britain, residingin the city-of Chicago, county of Cook, State of Illinois, have invented cert,ain -newandus eful Improvements in ,MoldingMaehines, of

. taken on line 13 of Fig. 5.

in any desired manner.

Patented'1) ec. 25, 1906.

over the entire/surface 'ofthe'article or see- In the accotnpadraWinga fOrmin g part ofthis specification, inwhich like letters of reference indicate like or corres onding parts, I have illustrated one form of device N618. AssiGNon or ONE-Herr To "I mowme-mcHm' embodyin the essential features of my invention, a though the same may be carried and in these drawings Figure 1 IS a inal cros's section of'the same. Fig. 3 is a longitudinal cross-section of one'form of a block on section, desi nod to be constructed" driving-gear. Fig. 10 illustrates a cross-secfront elevation of the com lete machine. Fig. 2 is a vertical longituinto effect other ways without in the least departing from the spirit of myinventiom.

'tionof the mold withthe compressors in the position of-the first operation. Fig. ll'is a similar view with. the compressors in the secpnd operation finishin the section. Fig. 12

illustrates the finishe section in the mold with the core Withdrawn. tional detail of the feed-chute and receptacle,

Fig. 14 isa sectionalview on line 14 of Fig. 5. I I I I In carrying out my invention the frame of the machine is constructed with sides'A A, which may be connected to ether and braced T e main drivingshaft A is journaled in this frame near the bottom thereof and has mounted thereon the pulley N, which may be driven by any suitable source of power. Mounted upon the shaft A are the s rocket-wheels ,A N, the purpose of which Wlll be hereinafter described.

At the rear of the frame A is journaled a sha ft B, having 11 on one end thereof the pinion b, to whic motion is transmitted from the shaft A through the pinion a,

mounted thereon, which'meshes with the pinion B". The pinion b transmits motion to the main drivlngsvheel' D.

Fig. 13 is a sec- 7 also machine and carrying thereon the cams C C, which are adapted'to raise and lower the table C in the operation of the machine. The cams C are constructed in two parts, as shown more clearly in Fig. 2, the outer rim c'bein secured to the cam pro er, C, by means of t e binding-screws c. -i hen it is desired to regulate the vertical movement of the table 0*, a rim 0 of greater or less diameter may be applied to the cam C.

Upon tlre left-hand side "of the machine looking at Figs. 1 and 5 is the driving-gear D, which meshes with and is driven by a pinion I), mounted upon the" shaft B. Carried upon the gear D are two cam projections 61 d, which are adapted to automatically op crate the clutch d, mounted upon the shaft B. The clutch d is kept in normal position by the tension of spring d. Arod (1 extends in a circumferential recess d between the clutch d. and the collar (1 and. carries thereon a lug or projection (i which extends into the path of'the cams d and by them is pushed out of normal position, carrying with it the clutch d. This mechanism is operated by means of the hand-lever D, which is pivotally connected with the rod (1 carrying the projection d which proj tion, with the aforesaid lever D, through the spring d", operates the clutch d.

The clutch E is carried upon the shaft C and is held in normal position under tension of the spring c, Fig. i. This sprin 6 abuts against a circumferential collar e, which has upon the opposite face thereof the cam proiections 6 a A rod E, supported by the hanger E projects in the path of; the cams e c and is adapted to be operated by the "treadle'E to throw the clutch E into'and out of engagement with the corresponding clutch member on the shaft Q,

An idler F, mounted upon a shaft F, journaled in the frame of the machine, meshes with the gear D and transmits motion to the gear G, which is mounted upon a shaft G",

" journaled in the top of the frame A, which shaft aiso supports the cranks H H inside of said frame. v

Movably secured in said. cranks H H are the arms it h, which extend from boxes or casings H H, Figs. 1 and 6, inside of which are the compression s irings H H A gross-beam ii supports t 16 casings H and springs H which are held in position thereon by the blocks g.

Bearings I are secured to the outer ends of the cross-beam I and support the compressor frame 1 The compressors J are removably and adjustably secured to the frame I 'o by means of the nuts 7'. Two rows of compressors J aresecured in the frame '1 each row being arranged to suit the size of the article or section to be compressed, the com l i c J. v pressors in each row being arranged in close mold is p aced in position, as shown in Fig.

hreztimity to each other, but suff ciently far apart to leave an air-space?) between each two.

A slot I is rovided upon eachside of the frame A, in w ich the compressor-frame 1 moves vertically when the machine is in oporation;

.Adjustably secured to each end of the frame I is a hanger K, Fig. 7, to which are movably secured the latches K K, which are operated by the hand-lever K, which is fulcrumed at K. A cross-rod 7c connects with the latch K and is adapted to be actuated by the lever K at the same time said lever operates the latch K. The operator, standing in front of the machine, moves the lever K to the right, thereby moving the latch K; which-is pi'votally secured. thereto, to the left. The cross-rod is is secured to said lever K near the end to which is attached the latch K, and'th'e same operation which. has moved the latch K to the loft moves the rod is to the right, carrying with it the latch AI, which is secured thereto, as shown more clearly in Fig. 6.

Supported upon the table C is a mold or former L, the front and one end Z being hinged together and the end Z and back Z also being hinged together. The opposite end P, Fig, 6, is secured to the frame L, which is made adjustable lengthwise of the mold and by means of the notches Z engaging in the standards L, exteu ding upwardly from the table C the lengthwise adjustment of the frame L the length of the ar ticle to be molded is regulated and nude either longer or shorter, as desired. A pallet L is disposed in the bottom of theniold L, which may be of diiierent shapes or con figurations, depending upon the article to he formed. This-pallet L is placed inside of the mold before each article or section is formed and is removed therewith. After the pallet is laced iii the mold the front of said 5 and locked by means of the latch or securing member L", which is pivotally secured to the table C A pair of endless chains or belts L are disposed over the table C beneath the pallet L Idler-wheels l f are arranged at the front and rear of the table C over which the chains L pass. liecesses or grooves (not hem shown) are provided in the table C in which the chiai'is l1" travel. These chains L drop by grm'ity beneath. the table C and when the block or section in the mold is ready to be retrieved the table is in its lowest position, as shown in Fig. 1, with the chains engaging the sprockets a on the wheels A. A stop Z is provided on each of the chains L, which stops are adapted to abut against the rear edge of the pallet L when it is desired to remove the pallet with the completed section thereon from the machine, as hereinafter dcscribed.

Cores of ditferent kinds or more than one. of each kind at a time may be used'in confjunctionlwith this mold, and for the purpose.

of; forming the longitudinal and vertical openings at 'm respectively, in such a block inafter described.

Abutting against the rejarface Z. of the mold, is an adjustable brace N, having" an elongated slot 1, through-which is passed a I bolt n, by means of whichsaid brace is set curedto the table-C and-which may bead j justed to suitithe width of the-block desired tobemade; orin case is desired/to make a block with what is knownas a f rock-face upon one, side thereof a 'mold+face,.n l is placed-inside of said mold L and .secured'td I from a steam-pipe; (Not he're'shown.) Thethe-rear' thereof Z and is held in fixed posi;

tion by means of the screws a Fig. 12. The

' rear face Z of the mold is provided with the recess 1 (shown'more clearly inFigs. 10 and 11): whenthe rearbrace 'N is in position which forms an air-chamber in the face- Z. of the mold. In the operation of the machine steam is forced into these chambers steam in the aforesaid chamber-keeps the "rear face l of the mold hot, so'that as the mold is filled with plastic material out of which the article is to be formed the face of the block or article being formed is dried.

while in the mold, so that when said section is removed from the machinethe face there}. of is smooth and dry and will not adhere to r the face of the mold when removed. As re viously described, the height-of the artic e is 'regulat'edby means of the rims c,-which are placed upon the cams C The length-of said article is regulated .by adjusting the frame L, forming one end of the mold, and the,

width of the article is regulated by an; ad-' justment of the rear brace 'N. The com ressors J. are also adjustable in the frame 2 to accommodate dliferent-sized articles,

or in case articles ofditferent lengths are de-.

sired'an additional number ofcompressors may be secured the openings 0 inthe frame P, Fig. 6.

-table 0, Fi s. 2 and 8, over which travelsa movable ta leO', carrying'at one end the, receptacles o o,'which receptacles are: ro-' At the rear of themachine is a stationary vided with a false. bottom o i When t ese oooreceptacles are in their normal position, as

showninFig. 2, they'are directly, beneath the chute O, ,throughwhich the plastic ma; terial' out of which the articles are to: be

formed is fed. The table 0'4" 'cari ying the mold L, in which the'block is to upon'the stationary'ta'bleOand is operated by the following described mechanism Loosely. mounted Iupon-. the driving-shaft gear P; which gearis mounted upon a bearing secured, in the I frame of the machine.

vB is a pinionfPflzwhicli meshes with the large Mounted also upon the shaft Bis-a clutch which is adapted tobe thrown into and out "of engagement witliJa corresponding clutch member q u on the pinion P, This clutch is operated y the lever Q to throw into and out. of. operation the mechanism for automatically moving the table 0,

'p is an elongated openingthrough Win-a is passed .a bolt or 1pin. p pivotally securing thereto theshaft' F 1g. 8. A supporting member'P v is pivotally secured at onefend thereofto the movable table 0 and at, thi' other end-to a stationary part P. J p is an .elongated openin' through which said sup porting member is pivotally connected to 7 the movable table" 0. 5 The supporting I ngate i member P is also provided with an e opening 7*, extending crosswise thereof, to which is pivotally secured'atpikthe opposite end of the shaft- P, the object of which is. to

allow the movable table 0. to have a period of rest during part oftherevolution of thewheel P during. which time the material contained in the receptacles 0' 0 is dropped by gravity into the mold L. In the opera tion of this part of, the'mechanism upon the first half oftherevolution of the wheel P? it "carries with it jtheshaft P, also the supporting memberPfl which. moves forward the movable table O,- -andupon-the latter half of its revolution returns said table to itsnor- .mal position.

AslshowninaFig j h; the movable table O' is provided with alaterallyadjustable par titlon .R, which is heldin fixed position by the set-screws r, so. that the length of the.

receptacleso oi may be easily and readily made to correspond with-the. len

he formed. A corresponding partition R is provided in the feed--chute 0 which partition is held th of the therein by screws 1?. or othersecuring means.

' Theoperation of the machinefis-as follows:

The plastic material out of which the article or section is to beformedis preparedandafed down: the chute O tovfill the rece taclesd of;

After the mold has been 'a djuste to the size :desired the allet L is placed in ositioniir .sideof; sai mold L and the 'si es thereof .closed and,securedinrpositionby the lock L -The core M- is lowered in' position lower ing the compressing mechanism and the beam; 1- towhich are secured the latches K 'and .K., which grip and hold the core in the position shown iIrFig. 5;] By loweringv the compressing mechanism the core M1: is lowered into the; mold, and while iniits lowered- I V position theoperator turns the lever K out v6 5 receptacles'glc Jo. av reciprocating -motioiir wardly which carries with it the latch K, and

which lever is by the same movement moved into the opposite direction, the rod is carryv ingupon the opposite end thereof the latch K. Upon releasing the latches K K the core is allowed to remain inside of the mold and the compressing mechanism is carried upward} leaving the core in the mold, and;

the 1110i isready to be filled with the plastic material to be compressed. The power is applied to operate the machine through the pulley A and after the mold and core are placed in position and the receptacles o "L. By this time the wheel P has completed the last half" of its revolution and has immediately carried the movable table 0, together with the receptacles 0, back to normal position, ready for another load of material. The

clutch Q is then thrown out of operative positionnintil the table.() is to be again advanced. In the meantime an attendant at the opposite side of the machine has operated the lever D and the treadle E to throw the clutches d and E into operative position, by means of which motion is transmitted to the driving-wheel D and through gears F and G to operate the compressors J to move downwardly, which operation has at the same time transmitted motion to the shaft C, carrying-the cams C C. As soon as the table '0 has been started on its backward movement and, the clutches d and E are thrown into operative position the revolution of the cams C raise the table 0 and with it the mold L, carrying the material to be operated upon. Simultaneously with this movement the cranks H H are forcing the compressors J downwardly upon the material in the mold, which presses-the same down into the mold,

=--as shown more clearly in Fig. 10. .This first 5 action of the compressors forces the material under the core and presses approximately all of the air out of the same, which escapes through the openings '0'. between said compressors. The upward movement 'of the cranks H. H has carried the compressors back to normal position, and the cams have completed a revolution. and lowered the table C to normal position, read to receive material to complete the article eing formed in the mold,and the clutches d E are thrown out of operative position; While the cams are in their upward position an attendant has placed a frame S upon the to of the mold L to receive the next load 0 -1naterial which is to clutch Q is again thrown into operative position, as before, and the table 0 advanced,

the material dropped into the mold, and the table 0 withdrawn. The clutch d is again operated as before to lower the compressors, when the final press on the material is made, which completes a block of the shape shown in Figs. 3 and 4.. During this time steam has been forced into the chambers Z which has kept the face Z of the mold hot during the aforesaid operations, thereby drying that face of the block, so that it is ready to leave the mold. While the compressors J are in their lowered position on the final compres sion of the material, the latches K K engage the plate or lip m m upon each end of the core, and as the compressors are moved to normal position, the core is withdrawn from the mold and elevated to the position shown in Figs. 1 and 2. When the compressors J have been raised to their normal position, the table C is in its normal position. The chains L have engaged the sprockets on thedrivingwheels A mounted on the main driving-shaft A. An attendant removes the frame S, releases the lock L and swings the front and end of the mold away from the block or section which has just been ressed. By this time the stops 1 have trave ed over the rear idler-wheels and abut a ainst the edge of the pallet L which is fiee to be moved along with said carriers or chains. L until it is carried out of the mold and off from the table (1 when it is removed by an attendant. Another pallet is then placed inside of the mold and the operation above described is repeated.

The advantages of my invention will be apparent to those skilled in the art.

My improvements are simple in construc tion, can be easily manufactured and placed in position, and are very efiicient in all respects in the performance of their functions.

I do not desire to be limited to the precise details of construction herein shown, as it is obvious that many of the details thereof might be changed without de arting from the spirit of my invention. either do I wish to be limited to the construction of a block or building-section of the kind shown in Figs. 3 and 4, as it is obvious by changing the she e of the mold and the core that sections of (ifferent sizes, shapes, and configurations might be formed with this machine, the main object of which is to provide a machine which will automatically mold out of plastic material of any kind an article which may be either complete in itself or may be so constructed that the completed article may be made by uniting or assembling sections or parts of an article, such as the one illustrated in the drawings, which is asection of abuilding-wall so constructed that when the wall is completed it will be provided with a plurality complete the section being molded, The

- ldo not desire to be limited to the usie of'a le core or to the use of any core at all this machine. I claim of asupportingframe, a vertically-movable table insideof said frame, a mold or former carried .by said table, means for filling said -mold with material to be compressed, verticall -movable compressors ,coacting with said mo'ld, and means forautomatically removing said' compressed material from the machine. I

2. In a molding-machine, the combination of a supportin -frame,' a table movable vertically in said rame, a mold or former and meansfor adjusting said mold .to different sizes, a reci rocating receptacle adapted to fill said mold with material to be com ressed, 2o vertically-movable compressors coactin'g with said mold to compress the material therein, and means for automatically removing said 'compresjsedmaterial from the machine.

3. Amolding-machine, having a verticallytable and moving therewith, means or filling .said-moldfwith material to be compressed, a.

of asupporting-fra'mefa drivingeshaft jour-' naled in said frame, with a vertically-mov- 4.5

ported abovesaidtable, a-longitudinally-reciprocating table supported-upon a frame at the rear of the machine, and clutch mechan-: ism adapted to be thrown into and out of contact wit nately operate the aforesaid reciprocatingtable-and the compressing means.

6. In a molding-machine, the combination 7 of a supportingrframe, a plurality of com pressors adjustably secured to a crossbeam.

movable in said'frame, said compressors be ing arranged out of contact with each other, a

vertically-movable table beneath said com 69 pressors, a-mold and meansfor adjusting it to difierent sizes. 1 v

7. -In a molding-machine,=the combination of a supportingframe, a'vertically-Inovable cross-beam secured in said'frame, crank- 1, Inamoldingmachinathe combination movable table, a mold supported u oh said crating said reciproable table supported inside of said frame and vertically-movable compressing means sup the aforesaid driving-shaft to alter-v l armscarrying said frame, compression-f :prings between said crank-arms and the I oresaid crossbeam, a plurality of coma pressors secured. inj the aforesaid frame, avertically-movable table inside of the aforesaid frame, an adjustable mold on said table, and means for'simultaneous'ly moving said compressors and table in 'oppomTte directions to each other. I 8. In a molding-machine', the combination of avertically-movable table an adjustable mold supported upon said table, a vertically,- movable frame, compressors adjnstably secured to and movable with said frame, cushioning-springs above said compressorsand means for operating said compressors atcertain predetermined intervals.

9. In a molding-machine, the combination of a vertically-movable table, an ad'ustable mold supported thereon, a vertically-movable frame over said mold, compressors ad justably secured in said frame, a reciprocating table movable laterally with respect to 1 the aforesaid mold, means for alternately operating said reciprocating table and the aforesaid compressors.

, 10. In a.molding-machine, the combination. of a supporting-frame, a vertically-mow able table, an adjustable mold or former upon said. table, mea'ns for filling said mold or former with material to.. be com resscai,-, 5 means for compressing said mateilal and endless carriers operating between said table and mold to automatically carry said com,-

pressed material off from the aforesaid table.

1 1. In a molding-machine, the combinamo tion of a supporting frame, avertically-movable table, an adjustable former upon said table, vertically-movable compressc/rs supported above said frame, means for-simultaneousl y moving said compressors and table 1n oppor0 5 'site directions to and'from each other, a re,

ciproc'ating table movablelaterally with respect-to the aforesaid mold and adapted to dill. said mold with plastic material, and

for alternately operating said reciprono eating table and theaforesaid com ressors "to compress said materialyand end ess can riers movable over said table whereby said compressed material 1s removed therefrom.

12. In a moldingqnachine, the combination of a vertical supporting-frame,- a main driving-shaftsupportedin said frame, a vertically-movable table, an adjustable mold on said table, compressing mechanism supported in the aforesaid frame above said mold, clutch mechanism coacti'ng with the-aforesaid driv'ing-shaftto operatesaid reciprocating table to fill the mold with. material 'to be compressed,-mechanism for .compfessing said 'mate'riahand means for an tomaticallyremov- 1a 5 ing said compressed material out of the mold.

"13.In a molding-machine, the combina' tion'of asupportingframe, a table, amold and means for adjusting the length, height I and widththereof, a core adapted to bedis- 2.3a

- ism for filling the mold and the con'ipressing 4 1 movable compressing mechanism (react ng into the aforesaid. mold. 5 0

. anisni. above the aforesaid table, means for tion of a supporting-frame, a table, a mold or pressed, means for operating the aforesaid re ct-ly beneath said chute, means for moving a said receptacle or receptacles laterally with compressing mechanism in; opposite direcposed inside oi said mold, and means for l automatically removing said core.

14. In a molding-machine, the coinbinaformer and means for adjusting the length, height and width thereof, a removable pallet forming the bottom of the inoldja core or cores adapted to be arranged inside oi said mold, mechanism for airtoinaticallyre noving said core or cores alter the material-has been compressed, and niechanisinior a'iitoniatically removing the aforesaid pallet and con;- pressed material away from the machine.

15..ln a machine of the class described, the combination of a vertical supportingframe, compressing mechanism movable in the upper part of said frame, compressionsprings coacting with said compressing mechanism, a mold'or former, means for filling said mold with plastic material to be commechanism to compress theniaterial, and means for automatically removing said compressed niaterial from the machine.

16. In a -molding-machine, the combination of a frame supporting the operative mechanism, a mold or former in said'frani e, a feed-chute, a receptacle beneath said' chute, means'for filling and discl'iarging the contentsof said receptacle into the mold, conipressing mechanism. coacting with said mold, and means for alternately operating mechanmechanisni, and means for automatically removing said compressed material from the machine. p

17. In a inolding-marhine,. tlie combination. of an upright frame supporting the operative mechanism, a mold or forinecsup' ported inside of said frame,downwardlyivith said-mold, afeed-chiite, a-reciprocating table, a receptacle or receptacles carried upon said table which in normal position IS direspect to the aforesaid mold, and means for discharging theq naterial to be compressed 18, In a molding-machine, the combination of a supporting-frame, a vertically-movable table inside of said frame, a mold or former carried thereon, compressin mech- 'anism above the aforesaid table, an .means for simultaneouslv moving said table and 19.,In a molding-machine, thecombiiiation of a supporting-frame, a vertically-movable table inside of said frame, a mold or former carried thereon, compressing mechsii-nnltaneously moving said table and compressing mech anism in opposite directions, a sod-chute and carrier cooperating therewith, anti mechanism for alternately operat' ing said carrier and said compressing meclianism. p

- 20. In a machine of the class described, the

combination of a vertically-movabie table,

an adjustable mold thereon, means for automatically measuring the material to be compressed, means for discharging said material ito said mold, vertically-movable compressing mechanism, means for simultaneously raising said table and mold and lowering the termined quantity of material to said mold,

means for compressing practically the entire surface of said material at one operation, and means for automatically removing said compressed material from the machine, substantially as described.

2. In a machine of the class described, the

.conibination of a vertically-movable table, an ad ustable mold, a compressor or compressors movable tpward and away trom said mold, receptacles adapted to receive and discharge the material to be compressedinto the.

aforesaid mold, and means for driving said compressors inside of said mold to siniulta neousl'y compress all of said material to a uniform density, and means for carrying said compressed material from the machine.

23. In a machine of the class described, the combination of an adjustable mold, a mostablc receptacle adapted-to receive and discharge a predetermined quantity of plastic material in said mold, a compressor or e opressors movable independently of said mold, said compressor or compressors being of a size to permit them to fit inside of said mold, air-vents in or between said compressors, means for operating the itlOTGSiIMl receptacle to discharge into the mold the material to be compressed, means for compressing said material and expelling the air therefrom at one operation, and means for automatically removing said compressed mate; 7

rial from the. ii'iachinc, substantially as described.

24. In a machine of the class described, the combination oi a v-ertically-movable table, an adj ustablc mold carried thereon, a removable pallet in said mold, means for automatically measuring the material to be comgerzmng the same, ,air-ventsin said com ress- Withdrawing the a oresai core or cores, and

- gripping, mechanism carried by the compressor-frame and adapted to raise and lower. the aforesaidcore or cores into and out of the let in said mold, a coreor cores in said mold,

I pressed material and the aforesaid pallet combination of a supportin frame, "a move cured in saidframe, cushioning-springs 00,-

compressed material from the machine, substantiallyas described.

25. In a machine of the class described, the

combination of a movable table, an adjust able mold carried thereon, a removable paleompressing mechanism and means for opa carrier operating to remove said com-' romthe machine. 26. Ina machine of the class described, the

able table, an adjustable mo d or former supported upon said table, a removable pallet in said mold, a core or cores, adapted to be disposed in said mold, a compressor-frame move able in the aforesaid supportingsframe, a compressor -or, cpmpressors adjustably ses actin with said com ressor' or com ressors mold, a feed-chute, a carrier beneath said chute and mechanism cooperating with. said carrier to receive and discharge apredetermined iiu antity of material into the aforei said m (1,. means for compressing said mate'- rial to anniform density at one operation, and a carrier for removing said compressedv material from the machine.

27. In a machine of the class described, the

combination of an adjustable mold, compress' mechanism coacting with said mold, means or dischar a. redetermined quantity of plastic material 1n said mold, means -for compressing said material and eiip'elling the air therefrom at one operation, and means for automatically removing the com pressed material from the machine. 28. In a machine of the class described, the

combination of a supporting-frame, a plurality of downwardly-movable compressors adj u'stably secured insaid frame, said compressors being arranged out of contact with each other, an adjustable mold ooacting with said com ressors, a receptacle adapted to auto matical-ly discharge aprede'terminedfquantity of plastic material into the aforesaid mold, mechanism to simultaneously operate the aforesaid compressors to cor npres s 'allof;

said material to a uniform-density at 01180;;

eration and means for automatically removing said 'compressed material from the'machine. i

specification in the presence of two subscrib-i ing witnesses.

. v WALTER DYER.

' Witnesses: v s f Pnoc'roa P. 'Coornr,

or. AMFA3.

. v .6; In testimony whereof I .haveisigned this 

